Observational evidence for self-interacting cold dark matter

@article{Spergel2000ObservationalEF,
  title={Observational evidence for self-interacting cold dark matter},
  author={Spergel and Steinhardt},
  journal={Physical review letters},
  year={2000},
  volume={84 17},
  pages={
          3760-3
        }
}
  • Spergel, Steinhardt
  • Published 23 September 1999
  • Physics, Medicine
  • Physical review letters
Cosmological models with cold dark matter composed of weakly interacting particles predict overly dense cores in the centers of galaxies and clusters and an overly large number of halos within the Local Group compared to actual observations. We propose that the conflict can be resolved if the cold dark matter particles are self-interacting with a large scattering cross section but negligible annihilation or dissipation. In this scenario, astronomical observations may enable us to study dark… 
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Why I Think That Dark Matter Has Large Self-interactions
  • M. Kaplinghat
  • Physics
    Astrophysics and Space Science Proceedings
  • 2019
We describe a self-interacting dark matter (SIDM) model that can explain the diverse rotation curves of spiral galaxies while maintaining the success of the cold dark matter model on large scales.
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